Feature Request: Add multiple flatpaks in one entry

[Tsubajashi]

Hi! i would like to be able to install more than 1 flatpak per entry. Some applications require older/newer flatpak runtimes, as for example OBS_VKCapture - to work correctly with most flatpaks. Some refer to 22.08, some to 23.08, and it looks a bit messy when implemented as single entries.

an example implementation could look like this:

`packages:

• VkCapture for OBS: [com.obsproject.Studio.Plugin.OBSVkCapture/x86_64/stable, org.freedesktop.Platform.VulkanLayer.OBSVkCapture/x86_64/23.08, org.freedesktop.Platform.VulkanLayer.OBSVkCapture/x86_64/22.08]`

I hope such an implementation could help other developers, too. they could make bundles of applications with this method aswell. Another Example:

`packages:

• Gaming Utilities: [net.lutris.Lutris, com.heroicgameslauncher.hgl, com.usebottles.bottles]`

[abanna]

This will be resolved in the upcoming release. Some questions about user and system space if you wanted to chat.